#include <bits/stdc++.h>
using namespace std;
const int N = 1010;

int n, m;
int f[N][N];

void add(int x1, int y1, int x2, int y2)
{
	f[x1][y1] += 1, f[x1][y2 + 1] -= 1;
	f[x2 + 1][y1] -= 1, f[x2 + 1][y2 + 1] += 1;
}

int main()
{
	cin >> n >> m;
	for(int i = 1;i <= m;i ++)
	{
		int x1, y1, x2, y2; cin >> x1 >> y1 >> x2 >> y2;
		add(x1, y1, x2, y2);
	}
	for(int i = 1;i <= n;i ++)
	{
		for(int j = 1;j <= n;j ++)
		{
			f[i][j] += f[i - 1][j] + f[i][j - 1] - f[i - 1][j - 1];
			cout << f[i][j] << " ";
		}
		cout << endl;
	}

	return 0;
}